Damper for ventilating systems



W. G. FORCIER.

DAMPEH FOR VENTILATIINGSYSTEMS.

APPLICATION FILED FEB. I4, 1.920,.

Patented Sept. 20, 1921 2 SHEETS-SHEET l.

I 36 d Y 36 l if milio/11b 6117519015819.

W. G. FORCIER.

DAMPER FOR VENTILAUNG SYSTEMS.

APPLICATION FILED FEB.14, 1920.

1,391,309, PatentedSept. 20, 1921,

2 SHEETS-SHEET 2.

Mihai@ GJc iene,

PATENT OFFICE.

WIIILIAM GVFORCIER, OF WOLLASTON, MASSACI-IIIT-J'SIETTS.`

DAMPER FOB VENTILATING SYSTEMS.

Specification of Letters Patent.

Patented Sept. 20, 1921.

Original application filed July 31, 1919, Serial No. 314,405. Dividedand this application led February 14, 1920. serial No. 358,802.

T0 all whom t may concern.'

Be it known that I, WILLIAM G. FoRoIER, a citizen of the United States,residing at l/Vollaston, inthe county of Norfolk and State ofMassachusetts, have invented certain new and useful Improvements inDampers for Ventilating Systems, of which the following is aspecification.

This invention is a damper for ventilating systems, the presentapplication being a division of an application filed by me July 31,1919, Serial No. 314,405.

In the accompanying drawings,

Figure 1 is a vertical section of a portion of a building showing theapplication of my present invention;

Fig. 2 is a front elevation of the damper.

As shown in Fig. 1 of the drawings, the building in which my inventionis embodied is of the hollow-wall type, a cardboard sheathing 7extending the entire height of the building and spacers 8 being securedover said sheathing at intervals and serving to hold the same againstthe several sills and girders of the building. An outer sheathing 9 issecured to the outer sides of the spacers 8 and this sheathing may havea facing of any desired material or style according to the finish to begiven the building. The roof 11 extends over the upper end of the space12 between the inner and outer sheathings but the lower end of saidspace is open although it is covered with a screen 13 to prevent theentrance of insects. Spaced inwardly from the sheathing 7 is a partition14, preferably of plaster, a deadair space 15 being thus providedbetween the sheathing 7 and the partition or wall 14. Spaced from thepartition 14 is an inner wall 16 which forms the outer sides of theouter rooms. Obviously, a second dead-air space 18 is formed between thewalls 14 and 16.

To permit circulation of air through the air space 12, I provide in theouter wall or sheathing 9 near the roof an opening 19 which is coveredby a screen 2O to prevent the entrance of insects and around the saidopening is provided a hood 21 vto protect the parts against weatherelements. The opening 19 may be covered at will by a damper 22 slidablymounted in cleats 0r other guides 23 secured upon the inner face of thesheathing 9, said damper being provided with an opening 24 correspondingin form and size with the opening 19. At the ends of the damper 22 arebrackets 25 to which are secured the ends of short cables 26 whichcables extend over and are secured to segments 27 mounted for rockingmovement at the opposite sides or ends of the damper. The segments maybe pivoted upon the sheathing, but I have illustrated a supportconsisting of a bearing sleeve 28 secured through the sheathing 7 andthe walls 14 and 16 in which the shaft 29 of a segment is journaled,this construction providing a more extended support for the segment andthereby more firmly holding it in its operative position. Upon eachsegment is an arm 30 to the free end of which is pivoted a link 31, thelower end of which is pivoted to an operating lever 32 fulcrumed in thewall 14 and extending through the sheathing 7 and the walls 14 and 16.The inner end of the lever 32 is hollow or provided with a socket 33 inwhich may be engaged a handle 34 to rock the lever when it is desired toadjust the damper and the slots or openings 35 in which the said leverplays may be lined with felt or similar material so that leakage of airthrough the same will not occur. If Ithe damper 22 be set in theposition shown in Fig. 2 the opening 19 will be covered and there willbe no circulation through the space 12 except such as may be due to theescape of air from the building. If, however, it be desired to permit acirculation ofair through said' space, a handle 34 is inserted in thesocket of the proper lever 32 and said lever is raised so as to pullthrough the link 31 upon the connected segment and thereby shift thedamper 22 so as to bring the opening 24 thereof into alinement with theopening 19 whereupon air will be permitted to enter the space 12 andflow down the same and carry off any moisture which may tend to collecttherein.

Within each room of the building, I provide upper and lower ventilators,each consisting of a casing 36 inserted through the sheathing 7 and thewalls 14 and 16, the upper casing being extended through the sheathing 9while the lower casing opens through and terminates at the sheathing.Within each casing are blades 38 which may be operated by an adjustingshaft 47 extending into the room and equipped with a suitable handle orcontrolling means. By

properly adjusting these dempers, the ciropenin segments disposed:'Ldjacen-ty the culaton through the room may be efl'eotu-V ends 'o saiddamper and connected thereall controlled. Y, with, levers mounted belowthe damper, and l0 avng thus described the invention, connectionsbetween said levers and the re- 5 what s claimed as new is: speotvesegments.

The combination of a damper sldably Intestmony'whereof afflx Insignature. mountedto cover or uncover a Ventilating WILLIAM G. FORCIE[1.. 8.]

